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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 1615 | * |
| 1616 | * @since 2.9.0 As "add_site_option_{$key}" |
| 1617 | * @since 3.0.0 |
| 1618 | * @since 4.7.0 The `$network_id` parameter was added. |
| 1619 | * |
| 1620 | * @param string $option Name of the network option. |
| 1621 | * @param mixed $value Value of the network option. |
| 1622 | * @param int $network_id ID of the network. |
| 1623 | */ |
| 1624 | do_action( "add_site_option_{$option}", $option, $value, $network_id ); |
| 1625 | |
| 1626 | /** |
| 1627 | * Fires after a network option has been successfully added. |
| 1628 | * |
| 1629 | * @since 3.0.0 |
| 1630 | * @since 4.7.0 The `$network_id` parameter was added. |
| 1631 | * |
| 1632 | * @param string $option Name of the network option. |
| 1633 | * @param mixed $value Value of the network option. |